/*******************************************************************************
 * Copyright 2017 Bstek
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License.  You may obtain a copy
 * of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
 * License for the specific language governing permissions and limitations under
 * the License.
 ******************************************************************************/
package com.bstek.urule.dsl;

import com.bstek.urule.RuleException;
import com.bstek.urule.dsl.RuleParserParser.OpContext;
import com.bstek.urule.model.rule.Op;

/**
 * @author Jacky.gao
 * @since 2015年5月6日
 */
public class DSLUtils {
    public static Op parseOp(OpContext ctx) {
        if (ctx.GreaterThen() != null) {
            return Op.GreaterThen;
        } else if (ctx.GreaterThenOrEquals() != null) {
            return Op.GreaterThenEquals;
        } else if (ctx.LessThen() != null) {
            return Op.LessThen;
        } else if (ctx.LessThenOrEquals() != null) {
            return Op.LessThenEquals;
        } else if (ctx.Equals() != null) {
            return Op.Equals;
        } else if (ctx.NotEquals() != null) {
            return Op.NotEquals;
        } else if (ctx.EndWith() != null) {
            return Op.EndWith;
        } else if (ctx.NotEndWith() != null) {
            return Op.NotEndWith;
        } else if (ctx.StartWith() != null) {
            return Op.StartWith;
        } else if (ctx.NotStartWith() != null) {
            return Op.NotStartWith;
        } else if (ctx.In() != null) {
            return Op.In;
        } else if (ctx.NotIn() != null) {
            return Op.NotIn;
        } else if (ctx.Match() != null) {
            return Op.Match;
        } else if (ctx.NotMatch() != null) {
            return Op.NotMatch;
        } else if (ctx.EqualsIgnoreCase() != null) {
            return Op.EqualsIgnoreCase;
        } else if (ctx.NotEqualsIgnoreCase() != null) {
            return Op.NotEqualsIgnoreCase;
        } else if (ctx.Contain() != null) {
            return Op.Contain;
        } else if (ctx.NotContain() != null) {
            return Op.NotContain;
        }
        throw new RuleException("Operator [" + ctx + "] is invalid.");
    }
}
